Sensory Effect Metadata for Color Correction in Multimedia
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Solution Overview
Problem
Current technologies face challenges in reproducing sensory effects, such as color correction, in multimedia systems due to differences between content creation environments and sensory reproduction apparatus capabilities, leading to inconsistencies in visual experiences for users.
Innovation Solution
A method and apparatus for generating and transmitting metadata, including Sensory Effect Metadata (SEM), User Sensory Preference (USP), and Sensory Device Capabilities (SDCap), using binary representation syntax to control sensory reproduction apparatuses, ensuring accurate color correction and other sensory effects based on content intent and user preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensory effects are reproduced using general multimedia systems, then multimedia contents can be displayed, but the visual experience consistency deteriorates due to differences between content creation environments and reproduction apparatus capabilities
Solution Approach 1:
The patent applies preliminary action by embedding sensory effect metadata (SEM) and device capability metadata (DCM) into the content during the content creation phase. This allows the reproduction apparatus to pre-analyze the metadata and adjust its rendering parameters before actual playback, ensuring consistent visual experience across different devices without requiring real-time adaptation.
Solution Approach 2:
The patent introduces metadata (SEM and DCM) as an intermediary layer between the content creator's intent and the reproduction apparatus's capabilities. This metadata acts as a communication bridge that translates creative intentions into device-specific instructions, enabling consistent reproduction across diverse hardware platforms.
2Measurement precision
If metadata is generated to control sensory reproduction apparatus precisely, then sensory effect reproduction accuracy is improved, but the system complexity increases due to multiple metadata types and analysis requirements
Solution Approach 1:
The patent segments the metadata system into distinct, functionally separate components: Sensory Effect Metadata (SEM) for describing intended effects, Device Capability Metadata (DCM) for characterizing reproduction apparatus, and User Preference Metadata (UPM) for capturing user preferences. This segmentation allows each metadata type to be processed independently, reducing overall system complexity while maintaining precision.
Solution Approach 2:
The patent creates a universal metadata framework that can describe various sensory effects (color correction, luminance adjustment, etc.) using a common structure and syntax. This multi-functional metadata system handles diverse reproduction requirements through standardized templates, reducing the need for device-specific custom metadata and simplifying the overall system.
3Manufacturing precision
If color correction effects are applied to match content creation environment, then color accuracy is improved, but the processing time and computational resources increase
Solution Approach 1:
The patent applies preliminary action by pre-calculating and embedding color correction parameters in the SEM metadata during content creation. The reproduction apparatus simply needs to retrieve and apply these pre-computed parameters rather than performing complex color space transformations in real-time, significantly reducing processing time while maintaining color accuracy.
Solution Approach 2:
The patent transforms the complex color correction problem into a parameter adjustment task by representing color space transformations as a set of discrete parameters (e.g., luminance factors, contrast adjustments) in the metadata. This parameterization allows for efficient computation and application of color corrections with minimal processing overhead.
Data Source
AI summary
Disclosed are a method and apparatus for providing metadata for a sensory effect, a computer-readable recording medium on which metadata for a sensory effect are recorded, and a method and apparatus for reproducing a sensory effect. A method for providing metadata for a sensory effect includes generating Sensory Effect Metadata (SEM) including sensory effect information on contents using binary representation syntax; and analyzing the SEM and transmitting the SEM to a sensory reproduction apparatus engine unit that generates control information on a sensory reproduction apparatus. In the method, the sensory effect information includes color correction effect information on the contents.